Reuse linux's config.h to build sdch on android.

BUG=
TEST=
Review URL: http://codereview.chromium.org/7835026

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@99930 0039d316-1c4b-4281-b951-d872f2087c98

sdch/sdch.gyp

@@ -53,7 +53,7 @@
         ],
       },
       'conditions': [
-        [ 'OS == "linux"', { 'include_dirs': [ 'linux' ] } ],
+        [ 'OS == "linux" or OS == "android"', { 'include_dirs': [ 'linux' ] } ],
         [ 'OS == "freebsd" or OS == "openbsd" or OS=="solaris"', { 'include_dirs': [ 'bsd' ] } ],
         [ 'OS == "mac"', { 'include_dirs': [ 'mac' ] } ],
         [ 'OS == "win"', { 'include_dirs': [ 'open-vcdiff/vsprojects' ] } ],